Bijective
[计] 双射的
🗣️ 情景例句
About the quality of 500 cartons of tin food we ordered last time.
是关于我们上次定购的500箱罐头食品的质量问题。
What is the total circulation of this journal.
这份报刊总发行量多少？
I can't get to sleep!
我睡不着！